Collins NJ, et al. - In this cross-sectional study, researchers characterized the prevalence of radiographic characteristics of patellofemoral (PF) osteoarthritis (OA) in adults with persistent PF pain, and described the prevalence of magnetic resonance imaging (MRI)–defined PF OA and compare it to that in age- and sex-matched controls, as well as examined the prevalence of radiographic and MRI-defined PF OA across age, sex, and body mass index (BMI) groups. Participants in the study were 84 people with PF pain ≥3 months duration and 26 age- and sex-matched controls. According to findings, radiographic and MRI-defined PF OA characteristics were apparent in 20–30% of adolescents aged 26–50 years with constant PF pain, with higher incidence found in those who were older or female or who had higher BMI. In individuals with PF pain, MRI-defined PF OA was more prevalent than pain-free controls, especially when defined as a full-thickness cartilage lesion with BML.